CCNA Routing and Switching Practice Test Results

Question 1
49% answer correctly
What is one benefit of PVST+?
PVST+ supports Layer 3 load balancing without loops.
PVST+ allows the root switch location to be optimized per VLAN.
PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.
PVST+ reduces the CPU cycles for all the switches in the network.
Question 2
36% answer correctly
Which command reveals the last method used to powercycle a router?
show boot
show version
show running-config
show reload
Question 3
34% answer correctly
Which IPsec security protocol should be used when confidentiality is required?
MD5
ESP
AH
SHA1
PSK